Most of Good Users in here using BITBLENDER Signature. I don't know if its bounty or not. But i think that project is good.
I join Atronocom and i think this project will good too in future.
It's a signature campaign only payment with bitcoin each week. The campaign manager is Hhampuz, best campaign manager right now. I'm not sure about atronocom, the name sounds cool though. I will have a look into this.